carpenter383
Platinum Member
Recently my dk40 gear tractor started whining anytime the hydraulics are under a load (power steering, fel or 3ph) It whines at all rpms and the whine gets louder at higher rpms. It has 258 hrs on it and I just changed the fluid and filter which didn't help. I also checked the fittings and they're all tight. The vent is clear too. The tractor has never been operated with the remote lever stuck in a detent btw. It dosen't whine when it's first started, but starts whining after a very short time of operating. Does anyone have any ideas? How can I go about testing the hydraulic pump? TIA